Alexandru Costea available

Alexandru Costea

AIX Implementation and System Administrator

Profileimage by Alexandru Costea AIX Implementation and System Administrator from Bucharest
  • 123 Bucharest Freelancer in
  • Graduation: not provided
  • Hourly-/Daily rates: 200 €/day
  • Languages: English (Native or Bilingual) | Italian (Full Professional) | Romanian (Native or Bilingual)
  • Last update: 01.03.2018
Profileimage by Alexandru Costea AIX Implementation and System Administrator from Bucharest
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AIX, Unix, Virtualization, HMC, VIO, VSCSI, NPIV, SAN, LPM, SDMC, System Administration, Performance Analysis, HACMP, pSeries, iSCSI, Fibre Channel, IBM Storage, NIM, LPAR, DS4000, LVM, AIX Administration, RedHat
  • Senior AIX Administrator

    Senior AIX Administrator
    Company NameNordea
    Dates EmployedJan 2017 – Dec 2017
    Employment Duration12 mos
    LocationStockholm, Sweden
    I am providing AIX Administration and act as a driver for Change Management
    Environment supported is across multiple landscapes and data centers. 
    My focus is AIX patching and related software maintenance.
  • Edit position Senior AIX Administrator

    Senior AIX Administrator
    Company NameIBM
    Dates EmployedJul 2015 – Jan 2017
    Employment Duration1 yr 7 mos
    LocationBucharest, Romania
    I am part of a team responsible for the administration of a complex AIX infrastructure composed of more than 200 power servers with AIX and Linux on Power.
    I provide knowledge on the AIX and Virtualisation side, also providing administration support for Linux servers.
    The team manages a number of mixed storages under SVC.
    Also we provide fabric administration on directories and switches .
  • Edit position AIX System Engineer

    AIX System Engineer
    Company NameCegeka Nederland
    Dates EmployedDec 2013 – Oct 2016
    Employment Duration2 yrs 11 mos
    Providing AIX administration in a multicustomer outsourcing.
    Creating performance assessments and performance reports for customers AIX infrastructure.
    Providing patch management strategies, implantation plan and bringing the customers AIX infrastructure to the best technical level for the business.
    Monitoring the servers for daily alerts and providing quick solutions.
    Documenting servers in order to have a good track of applications and server essential services.
    Following the process flow in order to have complacency with the audit standards.
  • Edit position Senior AIX Administrator

    Senior AIX Administrator
    Company NameTeamnet
    Dates EmployedNov 2014 – Jun 2015
    Employment Duration8 mos
    -Administrating a mix of IBM tchnologies - DS storage, Storevize, SVC, HMC, SDMC, FLEX and AIX of different levels
    -Assessing performance of all infrastructure and providing improvement plans 
    -Providing HW and SW maintenance plans and implementing them
  • Edit position AIX Implementation and System Administrator

    AIX Implementation and System Administrator
    Company NameRaiffeisen International Services & Payments
    Dates EmployedOct 2012 – Nov 2013
    Employment Duration1 yr 2 mos
    LocationBucharest, Romania
    Implementing Payments and DR Payments AIX machines.
    Providing Administration for AIX, VIO, HACMP and RedHat machines based on Power Systems.
    Provide overall support and maintenance of operating systems for AIX Machines.
    I have done a implementation of 4 p740 machines with HACMP install and configuration, preparing machines for Oracle RAC installation.
    Part of daily maintenance comes also a periodic performance analysis to correct bottle necks and possible issues. I also test and the solution and implement it when it comes to AIX.
    In my tasks comes to acquisition consult for further implementation and consider possible 
    Configuration/Administration of NIM Server/client environment for OS installation, OS upgrade, Package installation, Maintenance of hosts etc.
    Installation of patches, packages on various Unix hosts using NIM Server and patching hosts for vulnerability remediation as a part of security audit.
    Upgrade of AIX TL and SP to latest level using NIM server.alternatives.
    The machines mentioned here are all core banking systems.
    My latest implementation is virtualising a ds4k trough a v7000 and 2 power7+ machines
  • Edit position IBM GTS MTS Europe AIX Software Support Engineer

    IBM GTS MTS Europe AIX Software Support Engineer
    Company NameIBM
    Dates EmployedOct 2009 – Sep 2012
    Employment Duration3 yrs
    My domain of activity include the following IBM technologies/products:

    Logical Volume Manager (LVM)
    File System (JFS / JFS2)
    Object Data Manager (ODM)
    AIX on pSeries Boot Process( troublehsooting boot issues):
    ->Hypervisor, Kernel Debugger
    NIM configuration and management
    AIX Errpt analysis (SENSE data, SCSI Disk SCSI commands and error messages, ASC / ASCQ)
    SAN multipathing / FCP
    -> Configuration and Troubleshooting of IBM MPIO driver and SDDPCM
    Analyzing AIX System Dumps/Hangs
    AIX Performance Analysis + Tuning
    Virtual I / O Server (VSCSI / NPIV / SEA HEA)
    Live Partition Mobility (LPM)
    PowerHA / gsclvmd / RSCT

    In order to fully develop the skills acquired by training I have had several System P practice And Mentorship stages within IBM Italy and IBM UK
I am available anytime